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United States Patent | 5,695,579 |
Rowland | December 9, 1997 |
A process and apparatus for producing laminated materials comprising a metal sheet laminated on one or both sides to a polymer film or films. The process comprises forming a laminate by a combination of heat and pressure followed by reheating. A heat zone is provided for heating and/or cooling the laminate after the reheat stage and prior to quenching so that the laminate enters the quenching stage at a substantially constant temperature, irrespective of line speed.
Inventors: | Rowland; Mark Jeremy (Oxfordshire, GB) |
Assignee: | Carnaudmetalbox plc (GB) |
Appl. No.: | 525761 |
Filed: | December 4, 1995 |
PCT Filed: | March 17, 1994 |
PCT NO: | PCT/GB94/00536 |
371 Date: | December 4, 1995 |
102(e) Date: | December 4, 1995 |
PCT PUB.NO.: | WO94/21456 |
PCT PUB. Date: | September 29, 1994 |
Mar 25, 1993[GB] | 9306140 |
Current U.S. Class: | 156/64; 156/272.2; 156/282; 156/308.2; 156/309.9; 156/324 |
Intern'l Class: | B32B 031/00 |
Field of Search: | 156/308.2,309.6,309.9,324,498,499,555,583.1,64,244.11,244.24,272.2,282 |
3679513 | Jul., 1972 | Addinall et al. | 156/308. |
5059460 | Oct., 1991 | Heyes et al. | 428/35. |
5318648 | Jun., 1994 | Heyes et al. | 156/244. |
Foreign Patent Documents | |||
0312309 | Oct., 1988 | EP. | |
0312304 | Oct., 1988 | EP. | |
0402004 | May., 1990 | EP. | |
0485896 | Nov., 1991 | EP. | |
WO8903301 | Apr., 1989 | WO. |